johnson



(No Model.)

J. B., W. H.,& 0. B. JOHNSON. SEED DRILL TOOTH.

Patented Nov. 4, 1884.

WITNESSES .1 6, 7&1 5

W Q-4 (lwyaw'ka, Attorney.

ltl'ntrien States Patent Orrie j.

JESSE B. JOHNSON, \VILLIAM H. JOHNSON, AND OSCAR B. JOHNSON, OFINDIANAPOLIS, INDIANA, ASSlGNORS OF ONE-HALF TO CHARLES P. JACOBS, OFSAME PLACE.

SEED=DRILL TOOTH.

QPE ZIFECATION forming part of Letters Patent No. 307,658, datedNovember 4, 1884. Application filed July 28, 1881. (No model.)

To aZZ whom it may concern: in the lugs R R and through the eye of the50 Be it known that we, JEssE B. JoHNsoN, bolt 0. The eye E of the boltfits into the.

WM. H. JOHNSON. and ()soan B. J oinvsortcitirecess R between the eyelugsIt R.

Zens of the United States, residing at Indian Q is a nut on the threadedend of bolt Q.

apolis, in the county of Marion and State of The bolt Q is a pivot, uponwhich the tooth Indiana, have invented certain new and use may beturnedback from its position, as shown fnl Improvements inSecd-Drillleeth, and we in Figs. 1 and 2, when the pin P is broken or dohereby declare that the following is a full, withdrawn. The hook ends PP of the lug clear, and exact description of the same, rei'- P lieagainst the under side of the stock A, and

IQ erence being had to the annexed drawings, they inclose the eye J inthe recess P between making a part of this specification, and to thethem. \Vhen thus arranged and the pin P 60 letters and figuresofref'erence marked thereon. inserted through the eye J, the hooks P Pare This invention relates to seed-drill teeth; over said pin. Then byscrewing down the and it consists in the parts which will be herenut Kthe bolt H and pin P are drawn upinatterdcscribed,and pointed outin theclaims. ward, and the upper sides of the hooks P P" In theaccon'ipanying drawings, Figurel repdrawn tightly against the under sideof the 6 5 resents a side elevation of the device attached stock, andthe tooth thereby held firm and seto a fragment of the drill-stock. Fig.2 is a cured. By this means the tooth may be tightccntral verticalsection of the parts shown in cned when it becomes loose on the stock.The

Fig. 1. Fig. 3 is a top plan View of the tooth, rear pivot-bolt, C, mayalso be drawn up and and Fig. t is a front elevation of the same. thetooth secured in like manner. Like letters indicate like partsthroughout The object of this invention is to attach the the severalviews. tooth directly to the under side of the drill- The letter Arepresents the drill-stock, prostock without the intervention of a platebe- 25 vided with the opening B for the reception of tween tooth andstock. Heretoforc certain mathe hose from the top and the admission ofchines in this class have been constructed with the tooth-collar frombelow. a plate immediately under the drill-stock. To U is an opening inthe stock for the recepthe underside of this plate the tooth is securedtion of bolt I). Said boltis provided with eye by cross-pins or bolts,the plate being bolted Eonitslowerend and athreaded upper end, F. to thestock. By this arrangement the plate G is a nut, and G a washer, on boltD. could be rigidly united to the stock; but when H is an opening in thestock forward of the the tooth became loose upon the plate it couldopening 13. not be tightened. W'c remedy this defect by I is a boltthrough opening H. attaching our tooth to the stock by means of Jis aneye on said bolt, and J isthc threaded cyebolts passing verticallythrough the stock. end thereof, provided with nut K and wash- By thisarrangement we do away with the plate 8 5 or K. and produce a simple andei'i'ective device. L is the tooth, provided with opening L. The uppersurface of the arms P and R are in M is the point or shovel on thetooth, sea plane with the upper surface of the elliptical o curedthereto by bolt and nut M. flange 0, whereby a substantial flat surfaceis N is a collar on the upper end of the tooth, presented to the underside of the drillstock, 0 and O is an elliptical flange projectingoutthus aiding in the prevention of lateral play ward from the base ofthe collar N. of the tooth.

l is a lug projecting forward from the up Having thus described ourinvention, we 45 per end of the tooth. This lug is provided claim as newand desire to secure by Letters with hook ends I 1", between which (inthe Patent recess P) the eye J fits. l. A drilltooth provided withhook-arms l is a wooden break-pin through the eye J. on its upper frontside and two projecting arms Q is a bolt which passes through openingson the rear upper side thereof, said rear arms ing arms on the rearupper side thereof, said rear arms having an intervening recess for thereception of the eye of the rear bolt, and also provided withcross-openings for the transverse pivotal bolt, the upper end of thedrill being provided with the broad flange O, the upper surface of thefront and back arms being in a plane with upper surface of saidflange,whereby a series of flat even surfaces are presented to underside of the drill-stock, and lateral play of the tooth prevented, incombination with the stool: provided with the openings 0 B H, theeyebolts D I, bolts Q, and pin 1?, substantially as described, and forthe purpose set forth.

3. A drill-tooth provided on its upper side with the collar N, lateralflange O,and front and rear arms, I? R, in combination with the stock A,having d rillopeniug B, bolt-openings O H, the eyebolts D I, cross-boltsQ, and pin 1?, V

substantially as described, and for the purpose set forth.

l. A drill-tooth provided on its upper front side with hook-arms P andon its rear upper side with arms R, having eross-bolt openings therein,in combination with the stock A, having drill-opening B, bolt-openings GH, the eyebolts D I, cross-bolts Q, and pin 1 substantially asdescribed, and for the purpose set forth.

In testimony that we claim the above we have hereunto subscribed ournames in the presence of two witnesses.

JESSE JOHNSON. WM. H. JOHNSON. OSCAR B. JOHNSON. \Vitnesses:

GEORGE A. DANLEY, E, G. VHEELER.

